Machine for scoring cardboard



(No Model.) 2 Sheets-8heet 1Q G. W; HOBBS. MACHINE FOR SCORINGCARDBOARD.

4 530; Patented May 24, 1898.

No Model.) 2 Sheets-Sheet 2.

G. W. HOBBS. MACHINE P011 SCORING CARDBOARD. No. 604,530. Patented May24,1898.

THE Nonms Pawns co, Pam'au'mu. \VASHWGTON. 0. c

NiiTED Starr's n'rnnr rricn.

CLARENCE W. HOBBS, OF VORCESTER, MASSACHUSETTS.

MACHINE FUR SCORING CARDBOARD.

SPECIFICATION forming part of Letters Patent No. 604,530, dated May 24,1898.

Application filed August 19, 1893- Serial No. 483,586. (No model.)

To ctZZ whom it may concern:

Be it known that I, CLARENCE W. Home, a citizen of the United States,residing at Worcester, in the county of Worcester and State ofMassachusetts, have invented a new and useful Improvement in Machinesfor Scoring Cardboard, reference being had to the accompanying drawings,forming a part of the same, in which Figure 1 denotes a top view of themachine, a portion of the feeding-table having been broken away. Fig. 2is a sectional view of a portion of the machine represented on line 2 2,Fig. 1. Fig. 3 is a sectional view of a portion of the machine shown online 3 3, Fig. 1. Fig. 4 is a sectional view on line 4 4, Fig. 1. Fig. 5is a side view of the trippingwheel, which is engaged and rotated by apassing sheet of cardboard for the purpose of setting in motion thepushing mechanism by which the sheet of cardboard is carried to thesecond scoring-roll. Fig. 6 is a side view of the tripping-Wheel withone of the retainingplates removed. Fig. '7 is a central sectional viewof the tripping-wheel on line 7 7, Fig. 6. Fig. 8 is a central sectionalView on line 8 8, Fig. 1. Fig. 9 is a sectional view on line 9 9, Fig.8; and Fig. 10 is a side view of the stopplate A showing its overhangingbeveled face.

Similar letters refer to similar parts in the different figures.

My invention relates to an improvement in a card-scoring machineembracing two sets of scoring-knives adapted to score the cardboard intwo directions at right angles to each other by means of a singlepassage of the cardboard through the machine 5 and my present inventionhas for its object to provide means by which the cardboard after passingthe first set of scoring-knives will be automatically fed to the secondset of scoring-knives; and it consists in the mechanism hereinafterdescribed, and specifically pointed out in the annexed claims.

Referring to the accompanying drawings, A represents the table uponwhich the cardboard is presented to the first set of scoringknives a,carried upon the under side of the transverse bar A. After the cardboardpasses between the scoring-knives a and the roller 1), Fig. 2, it isdelivered upon the top of the second scoring-table A lying in the samehorizontal plane.

A represents an adjustable stop upon the table A and A denotes apushing-plate adjustably attached to a slide A sliding in ways A uponthe table A The slide A is provided with a series of holes A to permitthe adjustment of the pushing-plate A.

A denotes a bar supported at one end by a stand A and at the oppositeend by a bracket A", said bar being placed a short distance above thesurface of the table and immediately in front of and parallel with thesecond scoring mechanism. The bar A serves as a guide for one edge ofthe advancing sheet of cardboard as it is fed forward upon the table Aand holds the edge of the cardboard upon the table so it will properlyenter the second scoring mechanism.

J ournaled in suitable bearings beneath the table A is a shaft 13,carrying upon one end a crank-plate B, connected by a pitman-rod B witha lug B depending from the under side of the slide A so that by a singlerotation of the crank-plate B the pushing-plate A is given areciprocating movement over the surface of the table A toward the secondscoring mechanism, its forward motion pushing the sheet of cardboardlying upon the table A forward, so as to be seized by the cutting-knivesC and roll 0 of the second scoring mechanism.

The shaft B is connected by a clutching device with a gear D, which isdriven by a gear D on the shaft of the roll C. The clutch by which thegear D is connected with the shaft B may be of any known form ofclutching mechanism suitable for the purpose, that represented in thedrawings consisting of a collar E, attached to the shaft B and inclosedwithin a hollow hub on the side of the gear D.

In the annular space between the collar E and the inner wall of the hubE are a series of rolls E separated by fingers E projecting from theside of a ring E capable of turning about a collar E attached to theshaft B. The collar E is provided with an annular groove E within whichis placed a spiral compression-spring E acting against a screw E held inthe collar E and a screw E held in the ring E with its tension appliedto rotate the ring E around the collar E in the direction of the arrow,Fig. 9. The collar E has its face or periphery formed in curved sectionsE, Fig. 3, slightly eccentric to the axis of the shaft B, and as theaction of the spring E tends to rotate the ring F. and fingers E therolls F Will be wedged between the inner wall of the hub E and theeccentric faces of the collar E, causing the rotation of the gear D tobe imparted to the shaft B. In'order to disengage the clutchingmechanism, the ring E is provided with a projecting spur E andimmediately below the hub E, I hang a pivoted lever F, provided with ashoulder F, which is held in the path of the spur E by means of a springF The shoulder F of the lever F in its normal position holds the ring Efrom rotation as actuated by the spiral spring E and prevents the rollsE from being wedged between the hub E and collar E, thereby allowing thegear D to revolve independently of the shaft B. If the free end of thelever F be pushed down, the ring IE will be released, allowing theclutching mechanism to be thrown into action and the rotary motion ofthe gear D to be imparted to the shaft B until the lever F is raised inposition to engage the spur E and disconnect the gear D and shaft B. Theclutching mechanism as above described forms no part of my presentinvention, which relates particularly to the mechanism by which theclutching device is brought into action by the passage of a cardboardupon the table A causing the pushing-plate A to be automatically movedforward to carry the sheet of cardboard resting upon the table A tothesecond scoring mechanism. The mechanism by which this result isaccomplished consists of a roll G, journaled immediately behind thefirst scoring mechanism with its face slightly raised above the surfaceof the table A Above the roll G and parallel therewith is a shaft G,having attached thereto a series of disks G by which the sheet is fedonto the table A both shaft G and roll G being driven by intermediategearing G from the shaft G Turning loosely upon the shaft G is atripping-wheel H, recessed at H to receive a segment H which is retainedin its place by plates H H allowing a slight ra dial motion to thesegment H which is forced outward by a spiral spring H so its face Hprojects slightly beyond the face of the tripping-wheel H, its outwardmotion being limited by the screws H held in the segment II and passingthrough slots in the plates H The tripping-wheel II carries a crank-pinH connected by a pitman-rod H with the vertical arm H of a bell-cranklever pivoted upon a post H The horizontal arm H of the bell-crank leveris pivoted to the upper end of a rod which passes through a hole in thefree end of the pivoted lever F, and is provided with a shoulder Hadapted to engage the lever F as the rod H is .raised and depress thelever F as the rod is drawn down by the action of a spring H which holdsthe rod H and connected tripping-wheel H in the position shown in Fig.2, with the springactuated segment H just in advance of the roll G, sothat as a sheet of cardboard is passed between the roll G andtripping-wheel H it will be caught by the face of the segment H causingthe tripping-wheel II to rotate in the bell-crank lever and raising therod H until the shoulder H engages the lever F. As soon, however, as thesheet of cardboard has passed between the roll G and segment H thetension of the spring H which is now free to act, will draw the rod Hdown, depressing the lever F and releasing the ring E thereby causingthe clutch to connect the gear D and shaft B, which begins to rotate,carrying the pushing-plate A forward. As the ring E rotates a projectingpin I strikes against the rod H pushing the shoulder 1-1 out ofengagement with the lever F, which is raised by the spring F so as tobring the lever F into the path of the spur E thereby checking therotation of the ring E and again disconnecting the rotating gearD fromthe shaft B at the end of one complete revolution of the shaft, whichhas carried the pushing-plate A forward and back to the position shownin the drawings.

When thin and limber sheets of cardboard are being scored, it becomesnecessary to insure their operative contact with the segment H and thisis secured by the roll G, and while I prefer to use a roll and to shapethe segment H to cooperate therewith in its rolling contact upon thecardboard I do not confine myself to the use of a rolling device, the essential features being a tripping member and means for holding thecardboard in contact therewith during the period required to actuate thetripping member.

The faces of the pushing-plate A and of the stop A are beveled, as shownin Fig. 10 at J, so the edge of the cardboard sheet, if raised above thesurface of the table A is pushed down by the beveled face J and held incontact with the surface of the table,while the edge next the secondscoring mechanism is held upon the surface of the table by the parallelbar A and the fourth or rear edge of the cardboard sheet is held in theangle between the roll G and disks G From the stop A an arm K extendsover the center of the cardboard sheet, with its free end raised a shortdistance above the surface of the table in order to prevent thecardboard from being lifted off the table at its center.

The operation of my improved machine for scoring cardboard is asfollows: A sheet of cardboard is laid upon table A and is pushed alongon said table by the attendant until it is engagedfby the scoring-knivesa and the roller Z), by which the cardboard is scored in one direction.The action of the roller 1) and scoring-knives continues the motion ofthe direction of the arrow 1, Fig. 2, rocking the 1 sheet of cardboardforward between a roll G and disks G attached to the table G, bringingthe forward edge of the cardboard into contact with the segment Hcarried by the tripping-wheel H, which turns loosely upon the shaft G.The roll G and disks G engage the sheet of cardboard and act asfeedrolls to continue the movement of the sheet of cardboard and deliverit upon a second table A The engagement of the roll G and disks G withthe forward edge of the cardboard takes place just as the forward edgeof the cardboard is brought against the segment 11 so that theresistance to the forward move- In ent of the cardboard offered by thesegment 11 which would tend to buckle the cardboard between the segmentH and the scoringknives a, is counteracted by the action of the roll Gand disk G which, serving as feed rolls, draw the sheet of cardboardforward. The contact of the cardboard with the segment H rocks thetripping-wheel H and through connecting mechanism raises the rod H untilits shoulder H is brought above and into engagement with the lever F. Assoon as the sheet of cardboard passes the segment H the tripping-wheel His released, allowing the spring 11 to draw the rod H down and depressthe lever F, which releases the ring E thereby connecting the gear D andshaft B, which actuates the reciprocating pusher-plate A and causes itto push the sheet of cardboard which is supported upon the table Aforward toward the second scoring mechanism.

My improved scoring-machine comprises, therefore, the followinginstrumentalities: first, a table No. 1, upon which the cardboard issupported while it is fed to the first scoring mechanism; second,ascoring mechanism No. 1, by which the cardboard is scored in onedirection; third, a table No. 2, upon which the cardboard is deliveredfrom the first scoring mechanism and from which it is fed to the secondscoring mechanism; fourth, a scoring mechanism No. 2, arranged to scorethe cardboard at right angles to scoring mechanism No. 1; fifth, anautomatic feeding mechanism by which the cardboard is fed from table No.2 to the second scoring mechanism; sixth, a clutching mechanism by whichthe automatic feeding mechanism is connected with and disconnected fromthe driving power; seventh, a clutch-controlling mechanism arranged tobe actuated by a sheet of cardboard so that the movement of thecardboard through the machine will cause the automatic feeding mechanismto be connected and disconnected as the sheets of cardboard passsuccessively onto table No. 2. The clutch-controlling mechanism islocated between table No. 1 and table No. 2 and in the path of the sheetof cardboard as it passes from table No. 1 to table No. 2. Table No. 1

therefore serves to support the sheet of cardboard as it is presented tothe clutch-controlling mechanism, and the roller 1) and scoringknives (tserve to feed the cardboard forward and bring its advancing edge intocontact with the clutch-controlling mechanism. The tendency of thecardboard to buckle caused by the resistance of the clutch controllingmechanism to the forward movement of the cardboard is overcome by thepulling strain caused by the engagement of the roll G and disks G whilethe cardboard is held up against the segment H of the clutchcontrollingmechanism by the pressure of the roll G. As the cardboard advances thesegment 11 is carried out of the path of the cardboard, thereby allowingthe cardboard to pass forward upon table No. 2. This result isaccomplished inthe present instance by carrying the segment H in atripping-wheel which turns upon the shaft G, causing the segment H tomove in the arc of a circle, by which it is carried upward out of thepath of the cardboard as it moves forward.

The location of the clutch-controlling m echanism between table N0. 1and table No. 2 causes the moving sheet of cardboard to actuate theclutch-controlling mechanism during its passage from table No. 1 totable No. 2, so that when the sheet of cardboard is supported upon tableNo. 2 and in position to be fed to the second scoring mechanism it hasentirely completed its action upon the clutch-controlling mechanism. Thecardboard is fed to the machine usually in large sheets, which arefrequently thin and limber, and therefore means are necessary to controlthe cardboard in its contact with the clutch-controlling mechanism andalso to relieve it of strain or pressure while it is supported upontable No. 2 in position to be fed to the second scoring mechanism.

WVhat I claim as my invention, and desire to secure by Letters Patent,is

1'. In a machine for scoring cardboard, the combination of a scoringmechanism, a table from which a sheet of cardboard is fed to saidscoring mechanism, an automatic feeding mechanism by which the cardboardis fed to said scoring mechanism, a clutching niechanism by which saidfeeding mechanism is connected with the driving power, aclutchcontrolling mechanism arranged in the path of the cardboard andadapted to be actuated thereby, and a table upon which the cardboard issupported as it is presented to said clutch-controlling mechanism,substantially as described.

2. In a machine for scoring cardboard, the combination of two tables forsuccessively supporting the sheet of cardboard, a scoring mechanism, afeeding mechanism by which the sheet of cardboard is fed from the secondof said tables to said scoring mechanism, a clutching mechanism by whichsaid feeding mechanism is operatively connected with the driving power,and a clutch-controllin g mechanism located between said tables andarranged to be actuated by the sheet of cardboard as it passes from thefirst to the second table, substantially as described.

3. In a machine for scoring cardboard, the combination of two tables forsuccessively supporting the sheet of coardboard, a feeding mechanism forfeeding the sheet of cardboard from the second of said tables, aclutching mechanism by which said feeding mechanism is operativelyconnected with the driv ing power, a clutch-controlling mechanismlocated between said tables and arranged to be actuated by the sheet ofcardboard as it passes from the first to the second of said tables, andcomprising a tripping member capable of being carried out of the path ofthe cardboard, substantially as described.

4:. In a machine for scoring cardboard, the combination with a feedingmechanism and a clutching mechanism by which said feeding mechanism isoperatively connected with the driving power, of a clutch-controllingmechanism arranged to be actuated by the sheet of cardboard andcomprising a tripping member and rolls for engaging the cardboard as itstrikes said tripping member, substantially as described.

5. In a machine for scoring cardboard, the combination with the scoringmechanism, a feeding mechanism by which a sheet of cardboard is fed tosaid scoring mechanism, a clutching mechanism by which said feedingmechanism is operatively connected with the driving power, means forautomatically disengaging said clutching mechanism at the end of thefeeding movement, means for engaging said clutching mechanism with thedriving power, consisting of a tripping member adapted to be moved inone direction by the advancing edge of the cardboard and be held fromreverse movement by the contact of the cardboard, means for reversingthe motion of said tripping member after the cardboard has passed andmeans for operatively connecting said tripping member with saidclutching mechanism whereby said feeding mechanism is set in motion uponthe reverse movement of said tripping member, substantially asdescribed.

6. In a machine for scoring cardboard the combination of a scoringmechanism, a table upon which a cardboard is fed to said scoringmechanism, a feeding mechanism, a clutching mechanism by which saidfeeding mechanism is operatively connected with the driving power, meansfor automatically disengaging said clutching mechanism at the end of thefeeding movement, means for engaging said clutching mechanism with thedriving power, consisting of a tripping member pivoted above the surfaceof the table and arranged to be rocked about an axis parallel with thesurface of thetable by the advancing edge of the cardboard and arrangedto beheld from reverse movement by the contact of the cardboard, meansfor reversing the motion of said tripping member and connected mechanismby which the reverse motion of said tripping member is made to engagesaid clutching mechanism immediately after the cardboard has passedbeneath said tripping member, and means for moving the cardboard beneathsaid tripping member,substantially as described.

7. In a machine for scoring cardboard, the combination with a scoringmechanism, a table upon which a sheet of cardboard is fed to saidscoring mechanism, rolls by which the cardboard is carried upon saidtable, a feeding mechanism by which the cardboard is fed to said scoringmechanism, a clutching mechanism by which said feeding mechanism isoperatively connected with the driving power, means for automaticallydisengaging said clutching mechanism at the end of the feeding movementand means for engaging said clutching mechanism with the driving powerconsisting of a tripping member which is moved in one direction by theadvancing edge of the cardboard, a spring by which the motion of saidtripping member is reversed, means for operatively connecting saidtripping member with said clutching mechanism whereby said clutchingmechanism is thrown into action by the reverse movement of said trippingmember, substantially as described.

8. In a machine for scoring cardboard, the combination with a feedingmechanism and a clutching mechanism by which said feeding mechanism isoperatively connected with the driving power, of a clutch-controllingmechanism arranged to be actuated by the sheet of cardboard andcomprising a tripping member, and means for holding the cardboardagainst said tripping member, substantially as described.

9. In a machine for scoring cardboard, the combination with mechanismfor scoring a sheet of cardboard, of a tripping-wheel 11 ar ranged to beactuated by the passage of a sheet of cardboard beneath it, and feedingmechanism for pushing the cardboard toward the seorin g mechanism,clutching mechanism by which said feeding mechanism is connected withthe driving power, said clutching mechanism being operatively connectedwith said tripping-wheel, substantially as described.

10. In a machine for scoring cardboard, the combination with mechanismfor scoring the sheet of cardboard, feeding mechanism for pushing thesheet toward the scoring mechanism, and clutching mechanism by whichsaid feeding mechanism is connected with the driving power, of atripping-wheel provided with a projecting segment placed in the path ofthe sheet of cardboard, by which said tripping-wheel is oscillated, saidtripping-wheel and said clutching mechanism being operatively connected,whereby the oscillation of said tripping-wheel will bring said clutchingmechanism into action, substantially as described.

ll. In a machine for scoring cardboard, the combination with a pair ofscoring mechanisms placed at right angles to each other and with anintervening table, of a feeding mechanism sliding upon the surface ofsaid table and clutching mechanism by which said feeding mechanism isconnected with the driving power, of a roll G, shaft G, tripping-wheelH, turning loosely on said shaft and provided with a projecting segment,arranged to be engaged by a passing sheet of cardboard, saidtripping-wheel and said clutching mechanism being operativelyconnect-ed, substantially as described.

12. The combination with the table A and,

scoring mechanism comprising the roll 0 and knives O, of a roll G, shaftG, tripping-wheel H, turning loosely on said shaft, spring-actuatedsegment acting conjointly with said roll to engage a passing sheet ofcardboard, a pushing-plate, a rotating crank connected with saidpushing-plate, and a clutching device by which said crank is connectedwith the driving power, said clutching device being operativelyconnected with said trippingwheel H, whereby the passage of a sheet ofcardboard will causesaid tripping-wheel to oscillate and bring saidclutching device into action, substantially as described.

13. In a machine for scoring cardboard, the combination with scoringmechanism and feeding mechanism for feeding a sheet of cardboardthereto,of an oscillating tripping-whee1 I-I operatively connected withsaid feeding mechanism, said tripping-wheel havinga recess H, aradially-sliding segment H held in said recess, guide-plates H and aspring H by which said plate is pressed outward, sub stantially asdescribed.

14. In a machine for scoring cardboard, the combination with a table Aand scoring mechanism placed at one side of said table, of a bar I Aheld in a fixed position slightly above the surface of said table andparallel with and adjacent to said scoring mechanism with a clear spacebeneath said bar to receive a sheet of cardboard, feeding mechanism bywhich a sheet of cardboard is fed upon said table A in a line parallelwith, and beneath said bar, and a pusher-plate capable of areciprocating motion at right angles to said bar, by which the sheet ofcardboard is moved transversely to said bar and toward said scoringmechanism.

15. In a machine for scoring cardboard, the combination with a scoringmechanism of a receiving-table A upon which the sheet of cardboard isfed to said scoring mechanism, a table A upon which the scored sheet isdelivered from said scoring mechanism, a feeding mechanism consisting ofthe roll G,shaft G and disks G attached to said shaft placed behind thescoring mechanism by which the sheet of cardboard is fed upon the tableA after it has left the scoring mechanism, a second scoring mechanism bywhich the sheet of cardboard is cross scored, a reciprocatingpushing-plate by which the sheet of cardboard is moved on table A towardsaid second scoring mechanism, means for actuating said reciprocatingpushing plate comprising a clutching mechanism and a tripping-wheel Hmounted upon said shaft G operatively connected with said clutchingmechanism, substantially as described.

Dated this 5th day of July, 1893.

CLARENCE HOBBS.

Witnesses:

Burns 13. FowLnR, EMMA KESTER.

